Universiti Teknologi Malaysia Institutional Repository

Automatic detection of geomorphology changes using multisar data

Marghany, Maged and Sabu, Zurina (2009) Automatic detection of geomorphology changes using multisar data. In: 2nd National Conference on Society, Space and Environment 2009, 2009, Pulau Pinang.

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This study presents work to utilize multi Synthetic Aperture Radar (SAR) data to map the rate of spit change along the east coast of Kuala Terengganu, Malaysia. Multi temporal SAR data are involved the spacebome and airborne SAR data. The spacebome are ERS-I, and RADARS AT -1 SAR data. Two algorithms have implemented to extract the spit ‘s boundary from multi-SAR data which are Lee and Enhance Lee algorithms. The two algorithms are applied to multi-SAR data with window kernel sizes of 3x3, 5x5, and 7x7, respectively. The rate of spit change is estimated by using the traditional method of historical vectors overlaying technique which were acquired from multi-SAR data by manual digitizing. This study shows that Enhance Lee algorithm with kernel window size of 5 x 5 provides better speckles reduction. It is interesting too to find that the spit has dominated by accretion since 1993 to 2003 which is 7 m/yr. It can be concluded that the multi- SAR data can be used for mapping coastal geomorphology change in tropical area such as Malaysia.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Synthetic Aperture Radar (SAR), Enhance Lee algorithm
Subjects:G Geography. Anthropology. Recreation > G Geography (General)
Divisions:Geoinformation Science And Engineering (Formerly known)
ID Code:14855
Deposited By: Narimah Nawil
Deposited On:15 Sep 2011 10:38
Last Modified:07 Jul 2020 12:59

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